diff --git a/overviews/core/_posts/2012-11-03-value-classes.md b/overviews/core/_posts/2012-11-03-value-classes.md
index 0b615b037d..291deb2fab 100644
--- a/overviews/core/_posts/2012-11-03-value-classes.md
+++ b/overviews/core/_posts/2012-11-03-value-classes.md
@@ -47,7 +47,7 @@ One use case for value classes is to combine them with implicit classes ([SIP-13
 
 The following fragment of `RichInt` shows how it extends `Int` to allow the expression `3.toHexString`:
 
-    class RichInt(val self: Int) extends AnyVal {
+    implicit class RichInt(val self: Int) extends AnyVal {
       def toHexString: String = java.lang.Integer.toHexString(self)
     }